Available with Location Referencing license.
In ArcGIS Roads and Highways, a logical grouping of more than one nonbranching route is called a line. While routes are a continuing, uninterrupted range of measures, a line can handle discontinuities in measure (equations).
Line networks and the LRS Network feature class
A line network is a type of LRS Network feature class configured with additional fields for line support. In Roads and Highways, line information is stored with the Network feature class that uses it. Lines are supported only for LRS line networks.
Learn more about multiple linear referencing methods
Support for lines can be configured during LRS Network creation using either the Create LRS Network or Create LRS Network From Existing geoprocessing tools.
Learn more about creating and modifying an LRS Network
The line ID is a system-generated, global unique identifier (GUID) that Roads and Highways assigns to associate multiple routes to a single logical group called Line. The line name is a unique, user-defined name given to a line during route creation. Routes on a line in a line network are assigned a line order that indicates the sequence in which the routes in the line are connected end-to-end. As route editing activities are performed, Roads and Highways tools regenerate the line order as needed.
The following table provides an example of routes and their attributes on LineA in a line network. Each route on LineA shares a line ID and line name.
| Route ID | Route Name | Line Order | Line ID | Line Name |
|---|---|---|---|---|
{-7DCB) | Route1 | 100 | {-D490} | Line A |
{-B109) | Route2 | 200 | {-D490} | Line A |
{-F2E2) | Route3 | 300 | {-D490} | Line A |
LRS line network configuration
LRS line networks are optional. If you
need to handle discontinuities in measure (equations), an LRS line network is the provided
mechanism to support this. For example, when a roadway is realigned (rerouted), discontinuities are
introduced in measures. These discontinuities in measure are needed to correlate measures between
different time lines (before realignment and after realignment). This also allows you to restrict change in measures downstream of the affected area.
Configuring a line network allows
you to model events that span routes. Using the principle of an LRS Line Network, you can track,
locate, and manage the events that occur on the roadway by their measure, even
if the measures span routes on a line. 